Motor truck



Patented Oct. 12, 1926.

UNITED STATES HAGNUS HENDRICKSON, F CHICAGO,,ILLINOIS.

Moron. rnucn,

Application fled September 26, 1925. Serial No. 58,793.

This invention relates to motor trucks and the like and particularly to tower hoists for the same and is fully described in the following specification and shown in the accompanying drawin in which,

Figure 1 is a side e evation of the truck embodying the invention,

Fig. 2 is a to plan view of the same showing part of t e truck body cut away,

Fig. 3 is an enlarged front elevation of a castering sheave used on the truck,

Fig. 4 is a side elevation of the same, and

Fig. 5 isa partial plan view of the sheave iarnd mounting as viewed fromtthe' llne 5 of The embodiment illustrated comprises a truck having a chassis which is driven by a motor (not shown) in a well known manner, said truck having front and rear wheels 2Q 11 and 12 respectivelfy.

Any suitable plat orm 13 may be used beneath which is "rotatably mounted a drum 14 to which is secured a large sprocket wheel 15 which is driven by a small sprocket wheel 7 16 by means of chains 17.

The sprocket 16 is journalled on a shaft 18 which in turn is suitably journalled' on the chassis, said shaft having a dental clutch element 19 splined thereon so as to rotate with the shaft but movable longitudinall thereof into and out of engagement wit corresponding dental teeth 20 on the hub I of the sprocket 16. A pin 21 on the end of the bell crank 22 operates in the groove 23 in the member 19 to move the dental clutch element into and out of engagement with the teeth 20. 1

Thus it will be seen that with the shaft 18 continuously driven, the operator ma throw the clutch 19 into engagement wit the sprocket 20 thereby driving the drum 14 through the sprocket wheel 15 and, when desired, the clutch member 19 may be again thrown out of en agement.

The shaft 18 1s driven by the shaft 24 which is operably connected to the engine by mechanism not shown, so that the shaft 24 may be driven by the truck motor when desired. The shaft 24 drives the shaft 18 by any suitable form of ears such as a worm wheel (not shown) ut contained in the gear case25.

The steel rope A which is wound on the drum 14 passes forward to the sheave 26 as shown in Figs. 3 and 4, said sheave being 55 journalled on a pin 27 which is carried by a bracket 28. Above the sheave 26 is placed a hollow sheave housing 29 which is journalled at the top and bottom in suitable bearings 30 and 31. A sheave 32 is jouro0 nalled on a pin 33 in the sheave housing 29.

The rope A passing up from the sheave 26 passes through the hollow lower portion of the castering element "29 and around the sheave 32 and from here may be led to the rear or to either side through a swing of substantially 180 horizontally and at the same time may be led u or to the rear through a vertical angle 0 substantially 90 from the horizontal.

. The sheave housing 29 is preferably placed upon the rear of the cab 34 and, in this position, can be turned so as-to 'lie quite flat against the back of the cab when not in use, thereby occupying a minimum of space '75 and interfering as httle as possible with any load which may be placed on the truck bed 13.

Thus it will be seen that a very simple and highly efiicient form of truck hoist is provided.

While I have shown and described certain embodiments of my invention, it is to be understood that it is capable of many modifications. Changes, therefore, in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claims.

I claim:

1. In a motor truck, a chassis, a drum, a rope on said drum, means for driving said drum to wind the rope thereon, a cab on said chassis, a mounting on the back of said cab, a sheave housing journalled at two 95 points in said mounting, a sheave journalled .in said housing and adapted to receive said rope and to permit the end passing therefrom to take-ofi through a wide angle, said housin being movable so as to lie substantially at against said cab.

2. In a motor truck, a chassis, a drum, a rope on said drum, means for driving said drum to wind the rope thereon, a cab on said chassis, a mounting on the back of said cab, a sheave housing journalled at two points in said mounting, a sheave journalled in said housing intermediate said bearing 10 points and at one side thereof and adapte to receive said rope and to permit the end passing therefrom to take-0E through a Wide angle, said housing being movable so as to lie substantially fiat against said cab. MAGNUS HENDRICKSON. 

